javasript泡泡龙小程序，鼠标左右移动改变角度,单击左键发射泡泡 或者按键盘左右方向键改变角度,按空格键发射-Bubble Bobble javascr ipt applet, move the mouse left and right to change the angle, left-click launch the bubble or press the left and right arrow keys to change the angle of the keyboard, p